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- /* Copyright (C) 1993 Free Software Foundation, Inc.
- Contributed by Brendan Kehoe (brendan@zen.org).
-
- The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Library General Public License as
- published by the Free Software Foundation; either version 2 of the
- License, or (at your option) any later version.
-
- The GNU C Library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Library General Public License for more details.
-
- You should have received a copy of the GNU Library General Public
- License along with the GNU C Library; see the file COPYING.LIB. If
- not, write to the Free Software Foundation, Inc., 675 Mass Ave,
- Cambridge, MA 02139, USA. */
-
- #include <sysdep.h>
-
- #ifndef HAVE_GNU_LD
- #define __environ environ
- #endif
-
- .comm __environ, 4
- .comm errno, 4
-
- ENTRY(__start)
- .set noreorder
-
- /* The first thing on the stack is argc. */
- lw t0, 0(sp)
- nop
-
- /* Set up the global pointer. */
- la gp, _gp
-
- /* Then set up argv. */
- addiu t1, sp, 4
-
- /* To compute where envp is, first we have to jump ahead four
- bytes from what argv was. This will bring us ahead, so we don't
- need to compute the NULL at the end of argv later. */
- addiu v1, t1, 4
-
- /* Now, compute the space to skip given the number of arguments
- we've got. We do this by multiplying argc by 4. */
- sll v0, t0, 2
-
- /* Now, add (argv+4) with the space to skip...that's envp. */
- addu v1, v1, v0
- move t2, v1
-
- /* __environ = envp; */
- sw t2, __environ
-
- addiu sp, sp, -24
-
- /* __libc_init (argc, argv, envp); */
- move a0, t0
- move a1, t1
- move a2, t2
- jal __libc_init
- nop
-
- /* errno = 0; */
- sw zero, errno
-
- /* exit (main (argc, argv, envp)); */
- move a0, t0
- move a1, t1
- move a2, t2
- jal main
- nop
-
- /* Make the value returned by main be the argument to exit. */
- jal exit
- move a0, v0
-